Hammer.



A. FITZGERALD.

Patented Dec. 15, 1914.

By %g y2la A TTORNEY AUSTIN FITZGERALD, OF EAST ORANGE, NEW JERSEY.

HAMMER.

Specification of Letters Patent.

Patented Dec. 15,1914.

Application filed April 6, 1914. Serial No. 829,889.

To all whom it may concern Be it known that I, AUSTIN FITZGERALD, a subject of the King of Great Britain,-residing at East Orange, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Hammers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

My invention relates to improvements in tools of the hammer family; and it consists in certain novel features hereinafter first fully described and then particularly pointed out in the claim.

The primary object of this invention is the provision of a hammer comprising a head having but one permanent striking end with the other dc tachably connected thereto.

A further object of the invention is the provision of a hammer which may be provided with a plurality of interchangeable parts.

Other objects of this invention not at this time more particularly enumerated will be clearly understood from the following detailed description thereof, and as finally embodied in the clauses of the claim which is appended to and which forms an essential part of this specification.

The invention is clearly illustrated in the accompanying drawings, in which Figure 1 is a side elevation of a hammer with ball peen attachment in position. Fig. 9. is a side elevation of a shoemakers hammer attachment; Fig. 3 being a plan view of the same. Fig. i is a side elevation of a broad hatchet attachment; Fig. 5 being a plan view of the same. Fig-6 is a side elevation of a tinners pick attachment. Fig. 7 is a side elevation of a carpenters house adz. Fig. 8 is a side elevation of a claw attachment; Fig. 9 being a plan view of the same. Fig. 10 is a side elevation of a cross peen attachment; Fig. 11 being a plan view of the same. Fig. 12 is a side elevation of an alligator wrench attachment.

Similar characters of reference are employed in all of the above described views to indicate corresponding parts.

Referring to said drawings, the reference character 1 indicates a sectional view of a hammer handle fastened into. the eye 2 of the hammer poll, one end of said poll being formed into the permanent striking end 3 as in all hammers of standard construction, while the other end is formed to receive the various interchangeable attachments in which the character 4 indicates a groove, said end being flat, thus forming a shoulder as at 17 and terminating into a triangular key as at 5; the function of this shoulder is to take up the force of a blow when the tool is used as a hatchet or for other striking purposes, while the function of the triangular key 5 is to prevent the attachment from turning.

A sleeve 6 is held securely to this special formed poll end by means of three or more pins 7 engaging into the groove 4, said sleeve being threaded as at 8 and slotted in flange end to form two lugs between which is held the turning arm 9 by means of a rivet 10.

Attached to the turning arm 9 is a spring 11 held securely by means of a rivet 12, this spring 11 at one end has a bend and upset which springs into the depression 1.3 on the sleeve 6. The function of this spring is to hold the turning arm in place when not required for screwing the sleeve on or off an attachment.

The various attachments have a groove as at 15 which is accurately. made to fit snugly around the triangular key 5, and are further threaded as at 16 to engage the threads 8 of the sleeve 6.

' When any one of the different attachments is placed in position as shown in Fig. 1 a suitable and completed tool will result, and as any desired number of attachments of different shape and style may be used with this hammer it is apparent that the expense to the user will be minimized as only one hammer pol with handle attached is necessary with any number of attachments.

-I am aware, that some changes may be made in the details of the constructionof this hammer without departing from the scope of the present invention as set forth in the foregoing specification, and as defined in the claim which is appended. thereto.

Hence, I do not limit my present invention to the exact arrangements and combinations as described in the said specification, nor do I confine myself to the exact details of construction as illustrated in the accompanying drawings.

I am further aware that hammers have before been made having the entire hammerhead in one permanent piece, and that hammers so made, in difierent shapes, styles, and for difi'erentuses are readily purchasuble. This, therefore, I lay no broad claim to; but

\Vhat I do claim as new and of my invention is as follows, viz:

A'hammer pollupon which is rotatably mounted a threaded sleeve, said sleeve prevented from moving longitudinally, a tool member for attachment to the poll having a threaded stem for engagement by the sleeve, and a triangular key across the face of the poll for engagement with a triangular 15 groove in the end of said tool member When in place to prevent same from turning, substantially as and for the purpose set forth.

In testimony, that I claim the invention set forth above I have hereunto set my hand 20 F. WELLER, W. H. Roms. 

